Cooking stove



June 6, 1939. J. v. PROSSER 2,161,196

COOKING STOVE Filed Oct. 5, 1937 H: F Y

Q lNVENTOE JOSEPH P205552 By M .Qdlawmv fi T/OKNEKS Patented June 6, 1939 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates generally to apparatus for the application of heat, and more particularly to cooking stoves.

An object of the invention is to provide a cook- 5 ing stove particularly adapted, although not necessarily for use in the home, and is structurally characterized in a simple manner enabling dry and moist heat to be generated in respectively different sections of the stove which are combined in a compact unit.

Another object of the invention is to provide a cooking stove wherein moist heat from the moist section of the stove can be discharged into the dry section thereof should it be desired to supply controlled moisture to the dry section during roasting and baking operations therein, in order to prevent excessive drying of the food.

A further object of the invention is to provide a cooking stove embodying a warming compartment so associated with the dry and moist sections of the stove as to receive the residue of heat therefrom, as well as from flues through which a portion of the heat generated in' the stove is caused to flow during heating of said seeu tions, whereby to enable various articles to be conveniently warmed very economically.

Still another object of the invention is to provide a cooking stove in which the flues for the dry and moist sections, are embodied in a uni- 3o tary structure interposed between the sections and supplying a portion of the generated heat thereto in a'highly efficient manner.

With these and other objects in view, the invention consists in the combinations and arrangea ments of elements as set forth in the following specification and particularly pointed out in the appended claims. j

In the accompanying drawing:

Figure 1 is a view of the cooking stove in front a elevation, with portions of the front of the stove broken away to show the internal construction of other portions in section;

Figure 2 is a vertical transverse sectional view taken on the line 2-2 of Figure 1, except for a 4| portion thereof which illustrates an automatic feeding mechanism for the moist heat section of the stove;

Figure 3 is a fragmentary horizontal sectional view taken on the line 33 of Figure 1.

' 59 Referring specifically to the drawing, the invention in its present embodiment comprises a sheet metal stove body ll! of rectangular form supported at its corners in an elevated position from the floor by legs II, and divided medially 53 between its ends by a vertical flue member l2, into partitions l9 and 20, (Figures 2 and 3) co-acting,

therewith and with the walls l6 and of the sections, to define flues 2| and 22 through which heat from burners or heating units 23 and 24 of the respective sections, is conducted from the lower end of the flue member.

The flue member actually forms a dividing wall to separate the two sections I3 and I4, and the lower portions of its flues 2| and 22 open laterally into the combustion chambers 25 and 26 containing the burners 23 and 24, respectively. These chambers receive air for combustion through perforations 21 of a panel 28 which forms a common bottom wall for the sections, and constitutes a shield to prevent an excess amount of cold or unheated air from reaching the burners.

From the top wall 29 of the combustion chamber 25, the section I3 is divided horizontally by firebrick walls 30 and 3| into an oven 32 for roasting, a superposed oven 33 for baking, and a warming compartment 34, to which access is had by doors 35, 36, and 31, respectively, in the front wall of the stove body l0.

The compartment 34 is surrounded by an air space 33 with which the upper open ends of the flues 20 and 2| communicate so as to supply heated air to the space 38 and thus heat whatever articles are placed in the compartment 34. The space 38 is provided with a suitable outlet 39 to which a flue pipe (not shown) can be connected if desired. I

At different levels above the top wall 40 of the combustion chamber 26, the moist heat section I4 is provided with pairs of suitable brackets 4|-4|-4| for supporting perforated shelves and vegetable receiving trays 42 and 43-43, respectively. The bottom portion of the section 4 immediately above the combustion chamber 26 and beneath the shelf 42 provides a water chamber 44 having an inlet 45 and a drain pipe outlet 46 controlled by a drain valve 41.

The inlet 45 communicates exteriorly of the stove body In with a receptacle 48 fixed to the side of the stove body and having connected thereto a pipe 49 leading from the usual domestic source of water supply. The pipe 49 is provided with an inlet valve 50 operatively connected to a float 5| which works in the receptacle 48 and automatically maintains a predetermined water lever therein and in the water chamber 44. A suitable overflow pipe 52 leads from the receptacle to a drain (not shown).

The top wall 53 of the moist air section I4 is formed by firebrick, and spaced above this wall is a burner 54 associated with a grid 55 on which vessels can be placed for cooking operations exteriorly of the sections. A hot plate 56, with which is associated a second burner 51, is also provided above the wall 53 for frying operations, the hot plate having a grease channel 58 to which is connected a grease drain pipe 59 extending to a point beneath the section i4, and adapted to discharge into a removable pan (not shown).

The interior of the section i5 is placed in communication with the ovens 32 and 33 by pipes 59 and El, respectively, controlled by two-way valves 62 and $3. In one position of these valves, they permit the flow of moist heat from the section It into the respective oven 32 or 33 to supply moisture to the article being cooked therein, whereas in the other position of these valves, they place the interior of the section I 4 in communication with one of the fiues 22 so as to vent the section to atmosphere. section it above the water chamber 44 is adapted to be closed by a suitable door 64 (Figure 1).

Moist heat supplied to the ovens 32 and 33 from the section it is free to flow therefrom into the air space 38, through ducts 65 and 66 in the firebrick walls 30 and 3|, respectively. The burners 23 and 24 are in the form of perforated pipes connected to a manifold pipe 61 (Figure 2) leading from a source of fuel supply, and suitable gas valves 68 are provided to control the supply of fuel from the pipe 61 to the various burners, so that they can be independently controlled.

The operation of the invention is as follows:

In the use of the dry heat section l3 for roasting and/or baking operations, the heat from the burners 23 is conducted by the top wall of the combustion chamber 25 and the side wall I6, to the ovens 32 and 33, and is also conducted to the warming compartment 34 by the fiues 2|, whereby to utilize the heat with maximum efiiciency.

In the use of the moist heat section [4 for the cooking of vegetables, the heat from the burners 24 is conducted by the top wall of the combustion chamber 26 to heat the body of water in the chamber 44, and is conducted by the fiues The open front of the- 22 to the side wall I! to aid in heating the cooking space in the section. The residual heat passes from the fiues 22 to the space 38 so as to heat the warming compartment 34.

The heating of the body of water in the chamber 44 generates steam in the section l4 so as to cook the vegetables without additional moisture. In one position of adjustment of the valves 63 and 64, moist heat can be supplied to the ovens 32 and 33, should baking and roasting operations be carried out therein concurrently with operation of the section l4. In the other position of adjustment of the valves 63 and 64, the interior of the section I4 is vented to one of the fiues 22 so as to prevent the building up of pressure in the section.

From the foregoing description, it will be manifest that all types of cooking operations such as are generally required in the home can be conveniently carried out by the use of the stove embodying this invention, thus providing an all purpose cooking device in a compact, unitary structure.

What is claimed is:

1. In a cooking stove having heating means and heat sections provided with uninsulated walls in spaced confronting relationship, a refractory flue member for the heating means, interposed between the uninsulated walls of the sections and having fiues opening laterally thereto to heat the sections by the conduction of heat directly from the fiues to the uninsulated walls.

2. In a cooking stove having heating means and heat sections provided with uninsulated walls in spaced confronting relationship, a refractory flue member for the heating means, interposed between the uninsulated walls of the sections; said flue member having a longitudinal partition and transverse partitions co-acting therewith and with the uninsulated walls of the heat sections to define fiues opening laterally to the uninsulated walls to conduct heat directly to the latter.

3. A cooking stove comprising heat sections having uninsulated walls in spaced confronting relationship to provide a common flue space therebetween; means for heating the sections and from which heat is discharged through said flue space; and a flue member of refractory material in said flue space; said member having an intermediate longitudinal partition and a plurality of transverse partitions co-acting therewith and with said uninsulated walls of the heat sections to define a multiplicity of fiues opening laterally to the uninsulated walls, so as to conduct heat directly thereto.

JOSEPH V. PROSSER. 

